CN109454241A - A kind of tungsten/molybdenum product ultrasonic surface processing method - Google Patents
A kind of tungsten/molybdenum product ultrasonic surface processing method Download PDFInfo
- Publication number
- CN109454241A CN109454241A CN201811301776.1A CN201811301776A CN109454241A CN 109454241 A CN109454241 A CN 109454241A CN 201811301776 A CN201811301776 A CN 201811301776A CN 109454241 A CN109454241 A CN 109454241A
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- CN
- China
- Prior art keywords
- tungsten
- molybdenum
- product
- molybdenum product
- ultrasonic
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B1/00—Methods for turning or working essentially requiring the use of turning-machines; Use of auxiliary equipment in connection with such methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2222/00—Materials of tools or workpieces composed of metals, alloys or metal matrices
- B23B2222/92—Tungsten
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2270/00—Details of turning, boring or drilling machines, processes or tools not otherwise provided for
- B23B2270/10—Use of ultrasound
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2270/00—Details of turning, boring or drilling machines, processes or tools not otherwise provided for
- B23B2270/54—Methods of turning, boring or drilling not otherwise provided for
Abstract
The invention discloses a kind of tungsten/molybdenum product ultrasonic surface processing methods, this method can greatly improve tungsten/molybdenum product surface machining accuracy, reduce tungsten/molybdenum product surface defect, increase tungsten/molybdenum product surface hardness, effectively remove tungsten/molybdenum product surface scale, extends tungsten/molybdenum product service life, it is environment friendly and pollution-free, manufacturing cost is reduced, the processing and manufacturing period is shortened, improves working efficiency.
Description
Technical field
The present invention relates to a kind of metal surface processing technologys, process more particularly to a kind of tungsten/molybdenum product ultrasonic surface
Method.
Background technique
The roughness requirements of piece surface are that engineers and technicians are doing processing scheme and equipment fortune always in machine-building
To consider the problems of emphatically in.Surface roughness is to measure the one of the important signs that of machined surface quality, it is to part
Wearability, corrosion resistance, fatigue strength and fiting property all have a significant impact.When machined part surface roughness value is lower
When, common method is using grinding, as workpiece size is larger, structure is special or does not have grinding in engineering technology
When condition, the lower requirement of roughness value is usually reached using attrition process.But there are the process-cycles for traditional grinding technics
Compared with long, high production cost, production intensity is big, environmental pollution is serious, a variety of unfavorable factors such as larger are lost in machine tool.Especially
The hard brittle metal such as tungsten, difficulty of processing are very big.It is therefore desirable to the surface processing to tungsten, molybdenum bar material to explore.Another party
Face, molybdenum easily aoxidize in air, when aoxidizing serious, strong acid removal surface scale are generallyd use, in acid cleaning process
In pollute the environment, and it is possible to hurt operating staff.And pass through supersonic machining process, safe operation, processing
It is recyclable section source oil, environmental protection and saving, the characteristics of meeting green production.And ultrasonic wave processing ginseng in the prior art
Number is proposed both for specific materials (non-tungsten and molybdenum material), is not appropriate for adding for the ultrasonic wave of this kind of hard brittle metal of tungsten material
Work, it is difficult to obtain optimal surface effect, while some new technical problems, such as surface damage can be brought.
Summary of the invention
It is an object of the invention to provide a kind of tungsten/molybdenum product ultrasonic surface in place of overcome the deficiencies in the prior art
Tungsten/molybdenum product surface roughness and surface defect can be effectively reduced in processing method, the technique, extends tungsten/molybdenum product and uses the longevity
The characteristics of life, and can shorten the process-cycle, reduce production cost, environmental protection and energy saving, meet green production.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of tungsten/molybdenum product ultrasonic surface processing method, comprising:
1) tungsten product or molybdenum product are attached on lathe, workpiece is made to be in lathe center, bounce≤0.05mm；
2) linear velocity of adjustment ultrasonic cutter processing is 60~75m/min, and feeding speed is 0.15~0.3mm/r；
3) processing is implemented to tungsten product or molybdenum product using ultrasonic cutter.
In one embodiment: the linear velocity of the ultrasonic cutter processing is 70~72m/min.
In one embodiment: the feeding speed of the ultrasonic cutter processing is 0.15~0.22mm/r.
In one embodiment: before the ultrasonic cutter processing, the surface roughness of the tungsten product or molybdenum product is no more than
5.0μm
In one embodiment: before ultrasonic cutter processing, the surface roughness of the tungsten product or molybdenum product is 3.0~
5.0μm。
In one embodiment: after the ultrasonic cutter processing, the surface roughness of the tungsten product or molybdenum product is reduced to
0.09~0.50 μm.
In one embodiment: after ultrasonic cutter processing, the surface hardness of the tungsten product or molybdenum product promotes 10~
22%.
The technical program compared with the background art, it has the following advantages:
1. tungsten/molybdenum product surface roughness can be reduced to about 0.09~0.50 μm by 3.0~5.0 μm, it can be improved two etc.
Grade；
2. tungsten/molybdenum product surface hardness is than after common turning hard 10~22%, improve wearability prolongs the service life；
3. tungsten/molybdenum product surface defect, micropore are reduced, surface is in mirror effect, and surface smoothness greatly improves；
4. shortening tungsten/molybdenum product process-cycle, improve work efficiency；
5. tungsten/molybdenum product surface scale can be effectively removed, compared with acid washing method safety, environmental protection can reduce manufacturing cost, contract
The short processing and manufacturing period.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the molybdenum bar surface in the embodiment of the present invention after ultrasonic wave processing.
Fig. 2 is molybdenum bar surface microscopic figure before ultrasonic wave processing in the embodiment of the present invention.
Fig. 3 is the molybdenum bar surface microscopic figure in the embodiment of the present invention after ultrasonic wave processing.
Specific embodiment
The contents of the present invention are illustrated below by embodiment:
Ultrasonic surface processing method according to the invention, the processing step for carrying out surface processing to molybdenum bar are as follows:
(1) molybdenum bar is attached on lathe, workpiece is made to be in lathe center, bounce≤0.05mm；
(2) go out to meet the basic size of drawing requirement using suitable cutter making and geometric tolerance and surface roughness reach
3.0~5.0 μm of molybdenum bar；Among the present embodiment, for the φ 240mm molybdenum bar after turnery processing, purity > 99%, surface is thick
Rugosity is 3.12 μm；
(3) cable between ultrasonic cutter and external ultrasound wave producer is connected；
(4) adjust cutting parameter: the linear velocity of ultrasonic cutter processing is adjusted to 71m/min, and feeding speed (often rotates into
To) it is adjusted to 0.15mm/r；
(5) implement processing using the molybdenum bar that ultrasonic cutter forms step (2) processing.
The effect of molybdenum bar is as shown in Figure 1, molybdenum bar surface is in mirror surface, spalling of oxide layer, table after being processed using ultrasonic cutter
Surface roughness drops to 0.28 μm.Molybdenum bar surface defect in microstructure disappears (Fig. 3) substantially, and molybdenum bar surface hardness is by adding
28.3HRC is increased to 31.6HRC before work, and hardness improves 10.4%, and fatigue life, more common turning molybdenum bar extended 8% or so.
And during supersonic machining process is applied to tungsten, molybdenum product, find the parameter of ultrasonic wave processing, such as
Linear velocity and feeding speed are processed, it is very big to the surface roughness affect of tungsten, molybdenum product.As shown in the table.
The above is only the preferred embodiment of the present invention, the range implemented of the present invention that therefore, it cannot be limited according to, i.e., according to
Equivalent changes and modifications made by the invention patent range and description, should still be within the scope of the present invention.
Claims (7)
1. a kind of tungsten/molybdenum product ultrasonic surface processing method, it is characterised in that: include:
1) tungsten product or molybdenum product are attached on lathe, workpiece is made to be in lathe center, bounce≤0.05mm；
2) linear velocity of adjustment ultrasonic cutter processing is 60~75m/min, and feeding speed is 0.15~0.3mm/r；
3) processing is implemented to tungsten product or molybdenum product using ultrasonic cutter.
2. tungsten according to claim 1/molybdenum product ultrasonic surface processing method, it is characterised in that: the ultrasonic knife
The linear velocity of tool processing is 70~72m/min.
3. tungsten according to claim 1/molybdenum product ultrasonic surface processing method, it is characterised in that: the ultrasonic knife
The feeding speed of tool processing is 0.15~0.22mm/r.
4. tungsten according to claim 1/molybdenum product ultrasonic surface processing method, it is characterised in that: the ultrasonic knife
Before tool processing, the surface roughness of the tungsten product or molybdenum product is no more than 5.0 μm.
5. tungsten according to claim 1/molybdenum product ultrasonic surface processing method, it is characterised in that: the ultrasonic knife
Before tool processing, the surface roughness of the tungsten product or molybdenum product is 3.0~5.0 μm.
6. tungsten according to claim 1/molybdenum product ultrasonic surface processing method, it is characterised in that: the ultrasonic knife
After tool processing, the surface roughness of the tungsten product or molybdenum product is reduced to 0.09~0.50 μm.
7. tungsten according to claim 1/molybdenum product ultrasonic surface processing method, it is characterised in that: the ultrasonic knife
After tool processing, the surface hardness of the tungsten product or molybdenum product promotes 10~22%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811301776.1A CN109454241B (en) | 2018-11-02 | 2018-11-02 | Ultrasonic processing method for tungsten/molybdenum product surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811301776.1A CN109454241B (en) | 2018-11-02 | 2018-11-02 | Ultrasonic processing method for tungsten/molybdenum product surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109454241A true CN109454241A (en) | 2019-03-12 |
| CN109454241B CN109454241B (en) | 2020-12-22 |
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| CN201811301776.1A Active CN109454241B (en) | 2018-11-02 | 2018-11-02 | Ultrasonic processing method for tungsten/molybdenum product surface |
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| CN109454241B (en) | 2020-12-22 |
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